the flying mysteries of birds and insects to achieve theirunsteady vortex-lift are analyzed.
本文对人类升空奋斗史作了简要的回顾,指出人类虽然在飞行技术方面现已取得了惊天动地的成就,但有许多飞行技巧还远远不如飞鸟与昆虫;阐述了飞行器欲获得其升力的第二峰值之可能途径——对飞鸟与昆虫为获取其非定常涡升力的一些飞行奥秘作了剖析,在此基础上对当今空气动力学研究的一些方向性问題提出了一些见解,并就我国在这方面应当开展的研究工作提出了一些具体的建议。
A flutter differential equation for two coupled asymmetrical control surfaces was derived using Lagrangian equation under the supposition of quasi-steady aerodynamic forces.
以一对耦合控制面结构的气动弹性模型为研究对象,在准定常气动力的假设下,利用拉格朗日方程建立结构的颤振运动微分方程。
The Numerical Simulation and Experimental Research of Ichthyoid Rudder Steady Lift;
鱼形舵定常升力的数值模拟与试验研究
This paper presents a ALGOL program for Calculating The lift distribution on wings with control surface in steady and unsteady subsonic flow.
本文提供了计算亚音速偏转操纵面机翼的定常和非定常升力分布的算法语言程序。
Unsteady Aerodynamics Investigation for the Isolated Rotor in Large Amplitude Maneuvering Flight;
直升机大机动飞行中旋翼非定常空气动力研究
Prediction of Unsteady Cavitation Performance of Propeller by Lifting-Surface Theory;
升力面理论预报螺旋桨非定常空泡性能
Multi body dynamic differential equations are combined with the equations of the unsteady dynamic inflow model to establish the complete unsteadily aeroelastic coupling analytical model of the tiltrotor.
结合动力人流，研究了直升机模式下倾转旋翼机非线性非定常气弹耦合动力学特性。
a mathematical expression consisting of the constant e raised to some power.
把常数升高到特定的幂的数学表达式。
Conclusions The pressure of the amniotic cavity during normal pregnancy was stable, but changed with AFI.
结论正常妊娠各期羊膜腔内压力为一相对稳定值，但随羊水过多而升高，过少而下降。
Efforts must be made to raise the status of the Chinese language here.
华文在新加坡的地位肯定要大力提升。
On the Functions and Abilities of CFOs in Our Country;
论我国CFO的职能定位及能力的提升
Analysis on Abnormality Temperature of the Up Seat in Low-voltage Side of Transformer
电力变压器低压侧升高座温度异常的分析
Familiar Malfunction Analysis and Reliability Advancement Schemes for Power System on Missile
导弹动力系统常见故障分析及可靠性提升方案
Maintaining Peace and Stability to Improve the Ability of Serving Economic Development;
维护和平稳定努力提升服务经济发展的能力
dancing roller accumulator
升降辊贮布器,升降辊松紧架（可贮存一定量的织物,以调节其张力）
normal pressure and temperature
额定压力及温度正常压力和温度
the reason a steady state was never reached was that the back pressure built up too slowly.
不能达到稳定状态的理由是背部压力上升太慢。
The Tao is anchoring large forces of surgeons and support for ascending humans.
道正在为提升人类锚定疗愈和支持的大力量。
Investigation of Estimating Rate of Left Ventricular Pressure Rise By Doppler Echocardiography
多普勒超声测定左室压力上升速率的探讨
Analysis of force and determination of performance parameter in disc brake of mine hoisting
矿井提升机盘形闸受力分析及性能参数的确定